Your Webhosting Questions
Answered by the Webhosting Experts

How to install Zimbra 8 on CentOS 6

Zimbra 8 is a Free Email Server and is considered an Exchange replacement. Zimbra has an easy to use Web GUI that will allow you to manage your email efficiently. Here are the steps to take when installing Zimbra a Free VPS or Dedicated Server

1. Install CentOS 64 bit minimal install. You can use 32bit as well.
2. Create your MX records and A Records before you start.
3. yum -y install nc wget nano make nc sudo sysstat libtool-ltdl glibc perl ntp

4. Turn off sendmail if installed and turn off iptables.

chkconfig sendmail off
chkconfig ip6tables off
chkconfig iptables off

5. Disable selinux vi or nano /etc/selinux/config change the selinux= line to SELINUX=disabled
6. Add the mail servers hostname
vi /etc/hosts

7. Download Zimbra to your server

  • wget



8. Extract Zimbra

  • tar xvzf zcs-8.0.4_GA_5737.RHEL6_64.20130524120036.tgz



9. cd to the extracted directory

  • cd zcs-8.0.4_GA_5737.RHEL6_64.20130524120036



10. Run the install script

  • ./ -platform-override


11. Answer the prompts Y = YES

  • Do you agree with the terms of the software license agreement? [N] Y
  • Do you agree with the terms of the software license agreement? [N] Y
  • Install zimbra-ldap [Y]
  • Install zimbra-logger [Y]
  • Install zimbra-mta [Y]
  • Install zimbra-snmp [Y]
  • Install zimbra-store [Y]
  • Install zimbra-apache [Y]
  • Install zimbra-spell [Y]
  • Install zimbra-memcached [N]
  • Install zimbra-proxy [N]



You appear to be installing packages on a platform different than the platform for which they were built. This platform is CentOS6_64 Packages found: RHEL6_64. This may or may not work. Using packages for a platform in which they were not designed for may result in an installation that is NOT usable. Your support options may be limited if you choose to continue.

  • Install anyway? [N] Y
  • The system will be modified. Continue? [N] Y



You may get the following error if DNS is not resolving correctly.

  • DNS ERROR resolving MX for



It is suggested that the domain name have an MX record configured in DNS

  • Change domain name? [Yes] Y



Add your domain name next.

  • Create domain: []



MX: (

  • Interface:
  • Interface:
  • Interface: ::1
  • done.



12. Next you will come to the Main Menu which will show your configuration. Select #3 then change the Admin Password under option #4 next hit r to go back.

  • *** CONFIGURATION COMPLETE – press ‘a’ to apply
  • Select from menu, or press ‘a’ to apply config (? – help) a
  • Save configuration data to a file? [Yes] Y
  • The system will be modified – continue? [No] Y



13. When it finishes hit return to exit.

  • To access the web administration console point your browser to :
  • The clients web console is available at :
  • You can configure domains and DNS later with in the Zimbra administration console.

Need More Personalized Help?

If you have any further issues, questions, or would like some assistance checking on this or anything else, please reach out to us from your account and provide your server credentials within the encrypted field for the best possible security and support.

If you are unable to reach your account or if you are on the go, please reach out from your valid account email to us here at: [email protected]. We are also available to you through our phone and live chat system 24/7/365.

Tags +